ClickHouse Library Bridge Vulnerability Mitigation Measures

clickhouse-library-bridge allows opening arbitrary libraries from the filesystem, which makes it safe to run only inside an isolated environment. To prevent a vulnerability when it is run near the clickhouse-server, we will limit the paths of libraries to a location, provided in the configuration. This vulnerability was found with the ClickHouse Bug Bounty Program by Arseniy Dugin. #75954 (Alexey Milovidov).